Envelope for disinfection unit



FIG. 1 is a perspective view of an envelope for disinfection unit design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines depict portions of the envelope for disinfection unit that form no part of the claimed design. 

CLAIM The ornamental design for an envelope for disinfection unit, as shown and described. 